MOTOR AND OPTICAL DISK DRIVING DEVICE HAVING MOTOR

摘要

PROBLEM TO BE SOLVED: To increase a coupling force between a rotor body and a chucking mechanism body by changing a structure for coupling a rotor hub of the rotor body mounted on a shaft and the chucking mechanism body mounted on the rotor hub.SOLUTION: The motor 10 includes a sleeve 60 rotatably supporting a shaft 50, a rotor body 32 having a rotor hub mounted on the shaft, and a chucking mechanism body 42 having a boss 43 with a through-hole in which the rotor hub is inserted to be coupled, and a space part 70 so formed within the boss as to provide an elastic force when the rotor hub is coupled.